, Volume 39, Issue 5, pp 703-709

African DNA Lineages in the Mitochondrial Gene Pool of Europeans

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Abstract

Mitochondrial DNA (mtDNA) nucleotide sequences of African origin are found in various European populations at a low frequency (on average, less than 1%). Data on mtDNA variation in Eurasian and African populations have been analyzed, and African mtDNA lineages have been found in Europeans. It has been demonstrated that, despite the high diversity of mtDNA haplotypes of African origin in Europeans, few monophyletic clusters of African lineages are characterized by long-term diversity formed in Europe. Only two such mtDNA clusters (from haplogroups L1b and L3b) have been found, their evolutionary age not exceeding 6500 years. European and African populations have been compared with respect to the frequency distributions of the alleles of autosomal microsatellite loci found in Russian carriers of African mtDNA haplotypes. It has been demonstrated that alleles typical of Europeans are characteristic of the autosomal genotypes of these Russian individuals.